sample_main.xml

       
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        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
       
       
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        xmlns:tools="http://schemas.android.com/tools"
       
       
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        android:id="@+id/LinearLayout1"
       
       
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        android:layout_width="match_parent"
       
       
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        android:layout_height="match_parent"
       
       
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        android:gravity="center"
       
       
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        android:orientation="vertical"
       
       
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        tools:context=".MainActivity" >
       
       
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        10
       
       
        <TextView
       
       
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        android:layout_width="wrap_content"
       
       
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        android:layout_height="wrap_content"
       
       
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        android:padding="5dp"
       
       
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        android:text="@string/intro_message" />
       
       
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        <TextView
       
       
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        android:id="@+id/textStatus"
       
       
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        android:layout_width="wrap_content"
       
       
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        android:layout_height="wrap_content"
       
       
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        android:gravity="center"
       
       
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        android:text="@string/secondary_notconnected"
       
       
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        android:textAppearance="?android:attr/textAppearanceLarge"
       
       
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        android:layout_margin="5dp" />
       
       
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        25
       
       
        <Button
       
       
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        android:id="@+id/button1"
       
       
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        android:layout_width="wrap_content"
       
       
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        android:layout_height="wrap_content"
       
       
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        android:enabled="false"
       
       
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        android:text="@string/change_color" />
       
       
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        </LinearLayout>